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TitleWave propagation in a microporous structure for angled excitation
Publication TypeConference Paper
Year of Publication2011
AuthorsDawson, A., Young R., and Harris P.D.
Conference NameIEEE International Ultrasonics Symposium, IUS
Date Published2011
Keywordsaluminum, Anti-symmetric, Energy couplings, Micro-porous structure, Microstructure, Pore width, Porous, Wave propagation
AbstractIn this paper the antisymmetric excitation of a porous microstructured aluminium layer was investigated using FEA. The generation of two leaky antisymmetric type waves was observed; one similar to a fundamental anti-symmetric A 0 mode and the other a slower A mode. By increasing the microstructure pore widths the velocity of the dispersive A 0 mode decreases and the velocity of the A mode increases. The increased pore width decreases the energy coupling of both modes. © 2011 IEEE.

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